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Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
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Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
- Symbol: O.
- Atomic mass: 15.999 u.
- Atomic number: 8.
- Electron configuration: [He] 2s²2p⁴.
- Discovered: 1772.
- Discoverers: Joseph Priestley, Antoine Lavoisier, Carl Wilhelm Scheele.
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